Felicia bought 4 buckets of popcorn at the movies if she paid a total of $15 how much is one bucket of popcorn?

Find the zero function by factoring (try to show work) h(x)=-x^2-6x-9

Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1

Suppose that sahil knows that 45 people with ages of 18 to 29 voted. without using a calculator, he quickly says then 135 people with ages of 30to 49 voted. is he correct? how might sohil have come up with his answer so quickly?